7699-41-4 Usage
Description
Silicic acid, also known as silicic acid salts or orthosilicic acid, is a group of chemical compounds composed of hydrogen, silicon, and oxygen with the formula [SiOx(OH)4-2x]n, where H4SiO4 is the most predominant form. It is a hydrated form of silicon dioxide and belongs to the family of Miscellaneous Silicates, which are inorganic compounds with silicate as the largest metallic oxoanion. Silicic acid is found in various foods, such as grains, fruits, and vegetables, and has a wide range of applications in different industries.
Uses
1. Laboratory Reagent and Reinforcing Agent in Rubber:
Silicic acid is used as a laboratory reagent and reinforcing agent in the rubber industry. It enhances the strength and durability of rubber products, making them more resistant to wear and tear.
2. Protein Chromatography:
In the field of biochemistry, silicic acid is used in protein chromatography, a technique used to separate and purify proteins based on their size, shape, and charge.
3. Anti-biofilm Potential:
Silicic acid has been utilized in a study to demonstrate the anti-biofilm potential of a glycolipid surfactant produced by a tropical marine strain of Serratia marcescens. This application highlights its use in the field of microbiology and biotechnology.
4. Antioxidant Activity Studies:
Silicic acid has been used to study the antioxidant activity of fresh and processed Jalapeno and Serrano peppers, contributing to the field of food science and nutrition.
5. Toothpaste Manufacturing:
Silicic acid is commonly used in the manufacture of toothpastes, where it acts as an abrasive agent to help remove plaque and stains from teeth.
6. Chromatography Stationary Phase:
It is used as a stationary phase for chromatography, a technique used to separate mixtures of substances into their individual components.
7. Catalyst and Catalyst Carrier Manufacturing:
Silicic acid is utilized in the manufacture of catalysts and catalyst carriers, which are essential in various chemical reactions and industrial processes.
8. Tungsten Filament Production:
It is involved in the production of tungsten filaments as a chemical reagent and flux, playing a crucial role in the manufacturing of light bulbs and other electrical components.
9. Oil and Wax Decolorizing:
Silicic acid is used for oil and wax decolorizing, where it helps in removing impurities and improving the appearance and quality of the final product.
Biochem/physiol Actions
Silicic acid polymers are employed in water treatment systems, drug encapsulation cum delivery and for soluble nanoparticle generation. Silicic acid interacts with aluminum and reduces its bioavailability. It is an effective antidote for aluminum poisoning.
Safety Profile
An inhalation hazard. Poison by intravenous route. An eye irritant and nuisance dust. Questionable carcinogen. Mutation data reported. See also other silica entries and SILICATES
Check Digit Verification of cas no
The CAS Registry Mumber 7699-41-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,6,9 and 9 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 7699-41:
(6*7)+(5*6)+(4*9)+(3*9)+(2*4)+(1*1)=144
144 % 10 = 4
So 7699-41-4 is a valid CAS Registry Number.
InChI:InChI=1/H2O3Si.H2O/c1-4(2)3;/h1-2H;1H2
7699-41-4Relevant articles and documents
AlCl3 immobilized on silicic acid as efficient Lewis acid catalyst for highly selective preparation of dicyclohexylamine from the vapor phase hydroamination of cyclohexene with cyclohexylamine
Ai, Qiuhong,Jian, Jian,Liu, Pingle,Luo, He'an,Wen, Jingbin,You, Kuiyi,Zhao, Fangfang
, (2020/07/21)
An efficient and stable Lewis acid catalyst silicic acid (SA)-immobilized AlCl3 (AlCl3-SA) has been successfully prepared by the chemical bonding method in this work. The results indicated that the immobilized 15percentAlCl3-SA exhibited excellent catalytic performance and stability in the vapor phase hydroamination of cyclohexene with cyclohexylamine. 58.5percent cyclohexene conversion with 98.7percent selectivity to dicyclohexylamine was still maintained after running for over 150 h, and the space time yield of dicyclohexylamine was 142.6 mol/h·m3. The developed AlCl3-SA catalyst had the advantages of low cost and long-time stable activity. Maybe this work provides a promising approach for hydroamination of olefins to amines.
Conversion of benzyl alcohol to benzonitrile over a Cu10.3/SiO2 catalyst
Zhang, Yuecheng,Zhao, Xiaofu,Zhang, Hongyu,Yan, Xiang,Zhao, Jiquan
, p. 45 - 53 (2016/05/09)
A Cu10.3/SiO2 catalyst was prepared for the conversion of benzyl alcohol to benzonitrile through amination-dehydrogenation process. The catalyst showed high activity in the reaction, and a yield as high as 98.0% was reached under the optimized conditions. The catalyst was characterized by XRD, TEM-EDX, TG-DSC, N2 adsorption-desorption and IR of absorbed pyridine methods. The characterization results disclosed that the doping of copper created Lewis acid sites in the matrix of SiO2. The doped copper in the fresh catalyst was present in CuO state, which was reduced to elemental Cu by H2 generated in situ in the catalytic run. The characterization results also disclosed that the catalyst deactivation was mainly caused by the carbonaceous deposition on the surface of the catalyst in the catalytic reaction. The experimental results confirmed that most activity of the catalyst can be recovered at 550°C online by blowing air into the reactor. Partial sintering of copper particles took place during the catalytic run, which led to the slight decreases of Lewis acidity and dehydrogenation capacity, therefore, caused deviation of the performance of the regenerated Cu10.3/SiO2 catalyst from that of the fresh one.
Process for making highly active and selective catalysts for the production of unsaturated nitriles
-
, (2008/06/13)
An improved catalyst for the production of unsaturated nitriles from their corresponding olefins, the catalyst having the atomic ratios described by the empirical formula BiaMobVcSbdNbeAfBgOx and methods of making and using the same.
